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United States Patent | 5,673,858 |
Asakawa ,   et al. | October 7, 1997 |
A fluid jet nozzle apparatus includes a fluid passage communicated with a fluid jet opening, a valve member for opening/closing the fluid passage, and an elastic member for biasing and moving the valve member to a passage closing position. The valve member includes a pressure receiving face for moving the valve member to a passage opening position against the biasing force of the elastic member in response to application thereto of a fluid pressure exceeding a predetermined pressure. The valve member and the elastic member are interposed between an entrance opening of the fluid passage and a strainer surrounding the entrance opening.
Inventors: | Asakawa; Hiroyoshi (Nishinomiya, JP); Kioi; Yoshiyuki (Sanda, JP) |
Assignee: | Kyoritsu Gokin Mfg. Co., Ltd. (Hyogo-ken, JP) |
Appl. No.: | 502682 |
Filed: | July 14, 1995 |
Aug 10, 1994[JP] | 6-187981 |
Current U.S. Class: | 239/553.3; 239/553.5; 239/562; 239/575; 239/590.3 |
Intern'l Class: | B05B 001/14 |
Field of Search: | 239/568,566,553,553.5,597,590.5,575,590,553.3 |
1060089 | Apr., 1913 | Higgins | 239/575. |
4848672 | Jul., 1989 | Matsumoto et al. | 239/590. |
Foreign Patent Documents | |||
1913713 | Oct., 1970 | DE | 239/568. |
4035008 | Aug., 1991 | DE | 239/570. |
217642 | Jun., 1990 | JP | . |
190429 | Jul., 1994 | JP | 239/570. |
252944 | Oct., 1970 | SU | 239/570. |